From April 27 through October 31 2008, the Garden welcomes the passionate pop art of Niki in the Garden, an exhibition of 40 playful, larger-than-life mosaic sculptures in a rainbow of colors and materials. Gathered from around the world, and placed throughout the garden and Climatron, Niki works include nanas, animals, heroes, and totems, ranging from four to 18 feet tall. Some weigh a ton or more, such as the amazing six-ton skull.